material face {
 color 808080
 texture Dms/3d/plugins/SnapAv/cam.jpg
 type LIGHT
}
material dos {
 color 008000
 type LIGHT
}

mesh snap {
0 0 0   0 0 0

-50 -50 0
50 -50 0
50 50 0
-50 50 0
0 0 -30

face
 1 0 0 0 255 0 3 255 255 2 0 255
dos
 0 1 4
 1 2 4
 2 3 4
 3 0 4
}